ul.mydiv{
  margin:auto;
  padding:0;
  list-style: none;
}
ul.mydiv li{
  position: absolute;
  width:300px;
  -webkit-transition: width 0.3s ease,margin 0.3s ease,opacity 0.3s ease;
  -moz-transition: width 0.3s ease,margin 0.3s ease,opacity 0.3s ease;
  -o-transition: width 0.3s ease,margin 0.3s ease,opacity 0.3s ease;
}
ul.mydiv li:hover{
  margin:-5px 0 0 -5px;
  width:600px;
  opacity: 1;
  z-index:2;
  cursor: pointer;
}
.mydiv-info{
  position: absolute;
  top:20px;
  left:0;
  padding:10px 20px;
  background-color:rgba(255,255,255,0.3);
  border-top:1px solid rgba(255,255,255,0.6);
  border-bottom:1px solid #f1f1f1;
  z-index:1;
}
.mydiv-title{
  font-family: "微软雅黑","黑体";
  font-size:24px;
  font-weight: bold;
  padding:5px 0;
}
.mydiv-label{
  padding:12px 0;
}
.mydiv-label span{
  margin:0 4px;
}
.mydiv-detail{
  text-indent: 24px;
}
/*
*/
ul.mydiva{
 margin-top: 0px;
  padding:0;
  list-style: none;
}
ul.mydiva li{
  position: absolute;
  width:600px;
  -webkit-transition: width 0.3s ease,margin 0.3s ease,opacity 0.3s ease;
  -moz-transition: width 0.3s ease,margin 0.3s ease,opacity 0.3s ease;
  -o-transition: width 0.3s ease,margin 0.3s ease,opacity 0.3s ease;
}
ul.mydiva li:hover{
  margin:-5px 0 0 -5px;
  width:600px;
  opacity: 1;
  z-index:2;
  cursor: pointer;
}
.mydiva-info{
  position: absolute;
  top:30px;
  left:0;
  padding:0px 0px;
  background-color:rgba(255,255,255,0.9);
  border-top:1px solid rgba(255,255,255,0.6);
  border-bottom:1px solid #f1f1f1;
  z-index:1;
}
.mydiva-title{
  font-family: "微软雅黑","黑体";
  font-size:24px;
  font-weight: bold;
  padding:5px 0;
}
.mydiva-label{
  padding:12px 0;
}
.mydiva-label span{
  margin:0 4px;
}
.mydiva-detail{
  text-indent: 24px;
}
/**/
ul.mydivb{
  margin:auto;
  padding:0;
  list-style: none;
}
ul.mydivb li{
  position: absolute;
  width: 400px;
  height:300px;
  -webkit-transition: width 0.3s ease,margin 0.3s ease,opacity 0.3s ease;
  -moz-transition: width 0.3s ease,margin 0.3s ease,opacity 0.3s ease;
  -o-transition: width 0.3s ease,margin 0.3s ease,opacity 0.3s ease;
}
ul.mydivb li:hover{
  margin:-5px 0 0 -5px;
  width: 400px;
  height:600px;
  opacity: 1;
  z-index:2;
  cursor: pointer;
}
.mydivb-info{
  position: absolute;
  top:20px;
  left:0;
  padding:10px 20px;
  background-color:rgba(255,255,255,0.3);
  border-top:1px solid rgba(255,255,255,0.6);
  border-bottom:1px solid #f1f1f1;
  z-index:1;
}
.mydivb-title{
  font-family: "微软雅黑","黑体";
  font-size:24px;
  font-weight: bold;
  padding:5px 0;
}
.mydivb-label{
  padding:12px 0;
}
.mydivb-label span{
  margin:0 4px;
}
.mydivb-detail{
  text-indent: 24px;
}
#tour figure{
  color: white;
  display: inline-block;
  width: 380px;
  border:1px solid #ddd;
  border-radius:4px;
  margin:200px 50px 100px ;
  padding:4px;
  position: relative;
}
#tour figure img{
  vertical-align: middle;
}

/* 头部样式 */
#head .headMain {
  width: 1100px;
  height: 80px;
  margin: 0 auto;
  position: relative;
}

#wrap {
  width: 100%;
}

#head {
  width: 100%;
  background-color: #fff !important;
}

#head .headMain .logo {
  float: left;
  margin-top: 30px;
}

#head .headMain .nav {
  float: right;
  margin-top: 50px;
}

#head .headMain .nav li {
  float: left;
  margin-left: 40px;
  position: relative;
  list-style: none;
}

#head .headMain .nav li .up {
  color: black;
  position: absolute;
  width: 0;
  overflow: hidden;
  transition: width 0.8s;
  white-space: nowrap;
}

#head .headMain .nav li .down {
  color: #c90606;
}

#head .headMain .nav li:hover .up {
  width: 100%;
}

/* 箭头样式 */
#head .headMain .arrow {
  width: 21px;
  height: 11px;
  background: url(./imgs/menuIndicator.png);
  position: absolute;
  left: 50%;
  bottom: -11px;
  z-index: 2;
  transition: left .8s;
}

#content {
  position: relative;
  overflow: hidden;
  width: 100%;
}

#content>.list {
  position: absolute;
  left: 0;
  top: 0;
  width: 100%;
  transition: top .8s;
}

#content>.list>li {
  position: relative;
  overflow: hidden;
  background-position: 50% 50% !important;
}

#content>.list>li>section {
  width: 1300px;
  height: 720px;
  position: absolute;
  left: 0px;
  right: 0px;
  top: 0;
  bottom: 0;
  margin: auto;
}

/* 第一屏 */
#content>.list>.home {
  background: url(imgs/bg1.jpg) no-repeat;
}

#content>.list>.home .home1 {
  width: 100%;
  height: 100%;
  perspective: 800px;
  transform-style: preserve-3d;
}

#content>.list>.home .home1>li {
  position: absolute;
  left: 0;
  right: 0;
  top: 0;
  bottom: 0;
  visibility: hidden;
}

#content>.list>.home .home1>li>div {
  color: white;
  text-align: center;
  margin-top: 200px;
}

#content>.list>.home .home1>li:nth-child(1) {
  background: url("banner01.png");
}

#content>.list>.home .home1>li:nth-child(2) {
  background: url("banner02.png");
}

#content>.list>.home .home1>li:nth-child(3) {
  background: url("banner03.png");
}

#content>.list>.home .home1>li:nth-child(4) {
  background: url("banner04.png");
}
#content>.list>.home .home1>li:nth-child(5) {
  background: url("banner05.png");
}
#content>.list>.home .home1>li:nth-child(6) {
  background: url("banner06.png");
}
/* 圆点布局 */
#content>.list>.home .home2 {
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  text-align: center;
}

#content>.list>.home .home2>li {
  width: 20px;
  height: 20px;
  border-radius: 50%;
  margin: 0 2px;
  background-color: rgba(255, 255, 255, .5);
  display: inline-block;
  box-shadow: 0 0 4px rgba(25, 25, 25, 0.8);
  cursor: pointer;
}

#content>.list>.home .home1>li.active {
  visibility: visible;
}

#content>.list>.home .home2>li.active {
  background-color: #fff;
  cursor: default;
}

/*从左往右 leftHide  rightShow*/
#content>.list>.home .home1>li.leftHide {
  visibility: hidden;
  animation: 1s leftHide 1 linear;
}

#content>.list>.home .home1>li.rightShow {
  visibility: visible;
  animation: 1s rightShow 1 linear;
}

@keyframes leftHide {
  0% {
    visibility: visible;
  }

  50% {
    transform: translateX(-40%) rotateY(30deg) scale(.8);
  }

  100% {
    transform: translateZ(-200px);
  }
}

@keyframes rightShow {
  0% {
    visibility: hidden;
    transform: translateZ(-200px);
  }

  50% {
    transform: translateX(40%) rotateY(-30deg) scale(.8);
  }
}

/*从右往左 leftShow  rightHide*/
#content>.list>.home .home1>li.leftShow {
  visibility: visible;
  animation: 1s leftShow 1 linear;
}

#content>.list>.home .home1>li.rightHide {
  visibility: hidden;
  animation: 1s rightHide 1 linear;
}

@keyframes leftShow {
  0% {
    visibility: hidden;
    transform: translateZ(-200px);
  }

  50% {
    transform: translateX(-40%) rotateY(30deg) scale(.8);
  }
}

@keyframes rightHide {
  0% {
    visibility: visible;
  }

  50% {
    transform: translateX(40%) rotateY(-30deg) scale(.8);
  }

  100% {
    transform: translateZ(-200px);
  }
}

/* 第二屏    */
#content>.list .course {
  background: url(imgs/bg2.png) no-repeat;
}
.course1{
  margin-left: 700px;
}
.course1_text{
  align-content: center;
font-family: "微软雅黑", "黑体";
  font-size: 36px;
}
.course1_text1{
  align-content: flex-start;
  font-family: "微软雅黑", "黑体";
  font-size: 18px;
}
#content>.list>.course .course3 {
  width: 680px;
  position: absolute;
  right: 200px;
  top: 520px;
  z-index: 2;
}

#content>.list>.course .course3 .item {
  float: left;
  width: 120px;
  height: 132px;
  position: relative;
  perspective: 800px;
  transform-style: preserve-3d;
  cursor: pointer;
}

#content>.list>.course .course3 .item .face,
#content>.list>.course .course3 .item .backFace {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  box-sizing: border-box;
  padding: 15px;
  transition: transform 1s;
}

#content>.list>.course .course3 .item .backFace {
  background-position: 50% 50% !important;
}

#content>.list>.course .course3 .item:nth-of-type(1) .backFace {
  background: url(./imgs/bks.png) no-repeat;
}

#content>.list>.course .course3 .item:nth-of-type(2) .backFace {
  background: url(./imgs/binoli.png) no-repeat;
}

#content>.list>.course .course3 .item:nth-of-type(3) .backFace {
  background: url(./imgs/gu.png) no-repeat;
}

#content>.list>.course .course3 .item:nth-of-type(4) .backFace {
  background: url(./imgs/lbs.png) no-repeat;
}

#content>.list>.course .course3 .item:nth-of-type(5) .backFace {
  background: url(./imgs/apcoa.png) no-repeat;
}

#content>.list>.course .course3 .item:nth-of-type(6) .backFace {
  background: url(./imgs/hlx.png) no-repeat;
}

#content>.list>.course .course3 .item:nth-of-type(7) .backFace {
  background: url(./imgs/bks.png) no-repeat;
}

#content>.list>.course .course3 .item:nth-of-type(8) .backFace {
  background: url(./imgs/leonberg.png) no-repeat;
}

#content>.list>.course .course3 .item:nth-of-type(9) .backFace {
  background: url(./imgs/tata.png) no-repeat;
}

#content>.list>.course .course3 .item:nth-of-type(10) .backFace {
  background: url(./imgs/bks.png) no-repeat;
}

#content>.list>.course .course3 .item:nth-of-type(11) .backFace {
  background: url(./imgs/pcwelt.png) no-repeat;
}

#content>.list>.course .course3 .item:nth-of-type(12) .backFace {
  background: url(./imgs/bks.png) no-repeat;
}

#content>.list>.course .course3 .item .face {
  transform: rotateY(180deg);
  backface-visibility: hidden;
  background-color: darkseagreen;
  color: #fff;
}

#content>.list>.course .course3 .item:hover .face {
  transform: rotateY(360deg);
}

#content>.list>.course .course3 .item:hover .backFace {
  transform: rotateY(180deg);
}

#content>.list>.course .course3 .line {
  width: 9px;
  height: 410px;
  position: absolute;
  background: url(./imgs/plus_row.png) no-repeat;
  top: -7px;
}

#content>.list>.course .course3 .line:nth-of-type(1) {
  left: -5px;
}

#content>.list>.course .course3 .line:nth-of-type(2) {
  left: 115px;
}

#content>.list>.course .course3 .line:nth-of-type(3) {
  left: 235px;
}

#content>.list>.course .course3 .line:nth-of-type(4) {
  left: 355px;
}

#content>.list>.course .course3 .line:nth-of-type(5) {
  left: 475px;
}

/* 第三屏 */
#content>.list .works {
  background: url(imgs/bg3.jpg) no-repeat;
  background-size: cover;
}

#content>.list>.works .works1 {
  margin: 50px 0 100px 50px;
  position: relative;
  z-index: 2;
}

#content>.list>.works .works2 {
  margin-left: 50px;
  position: relative;
  z-index: 2;
}

#content>.list>.works .works2 .item {
  float: left;
  width: 220px;
  height: 133px;
  margin: 0 1px;
  position: relative;
  overflow: hidden;
}

#content>.list>.works .works2 .item .mask {
  position: absolute;
  left: 0;
  top: 0;
  bottom: 0;
  right: 0;
  background-color: black;
  box-sizing: border-box;
  padding: 10px;
  opacity: 0;
  color: #fff;
  transition: opacity 1.2s;
}

#content>.list>.works .works2 .item .mask .icon {
  width: 32px;
  height: 34px;
  /* background-color: burlywood; */
  margin: 0 auto;
  margin-top: 10px;
  background: url(./imgs/zoomico.png);
  transition: background-position 1.2s;
}

#content>.list>.works .works2 .item .mask .icon:hover {
  background-position: 0 -35px;
  transition: background-position 1.2s;
}

#content>.list>.works .works2 .item:hover .mask {
  opacity: 0.8;
}

#content>.list>.works .works2 img {
  transition: transform 1s;
}

#content>.list>.works .works2 .item:hover img {
  transform: rotate(30deg) scale(1.5);
}

#content>.list>.works .works2 .item:last-of-type {
  width: 332px;
}

#content>.list>.works .works3 {
  width: 167px;
  height: 191px;
  background: url(./imgs/robot.png) no-repeat;
  position: absolute;
  z-index: 2;
  left: 900px;
  top: 170px;
  animation: works3Move 5s linear infinite;
}

@keyframes works3Move {
  49% {
    transform: translateX(-500px) rotateY(0)
  }

  50% {
    transform: translateX(-500px) rotateY(180deg)
  }

  100% {
    transform: translateX(0) rotateY(180deg)
  }
}

#content>.list .about {
  background: url(imgs/bg4.jpg) no-repeat;
}

#content>.list .about .about1 {
  margin: 50px 0 100px 50px;
}

#content>.list .about .about2 {
  margin-left: 50px;
  width: 400px;
}

#content>.list .about .about4 {
  width: 357px;
  height: 998px;
  position: absolute;
  left: 50%;
  top: -100px;
  background: url(./imgs/greenLine.png);
}

#content>.list .about .about3>.item {
  width: 260px;
  height: 200px;
  border: 5px solid rgba(255, 255, 255, .5);
  border-radius: 8px;
  position: absolute;
  z-index: 2;
  overflow: hidden;
  cursor: pointer;
}

#content>.list .about .about3>.item:nth-child(1) {
  left: 750px;
  top: 50px;
}

#content>.list .about .about3>.item:nth-child(2) {
  left: 600px;
  top: 290px;
}

#content>.list .about .about3>.item>span,
#content>.list .about .about3>.item>ul {
  position: absolute;
  left: 0;
  top: 0;
  right: 0;
  bottom: 0;
}

#content>.list .about .about3>.item>ul>li {
  float: left;
  position: relative;
  overflow: hidden;
}

#content>.list .about .about3>.item>ul>li>img {
  position: absolute;
  transition: top .5s, left .5s;
}

#content>.list .about .about3>.item:nth-child(1)>span {
  background: url(./imgs/about2.jpg) no-repeat;
  transform: scale(1.5);
  transition: transform 1s;
}

#content>.list .about .about3>.item:nth-child(2)>span {
  background: url(./imgs/about4.jpg) no-repeat;
  transform: scale(1.5);
  transition: transform 1s;

}

#content>.list .about .about3>.item:hover span {
  transform: scale(1);
}

/* 第五屏 */
#content>.list>.team {
  background: url(imgs/bg5.jpg) no-repeat;
}

#content>.list>.team .team1 {
  width: 400px;
  margin: 50px;
  float: left;
}

#content>.list .team .team2 {
  width: 400px;
  margin: 50px;
  float: right;
}

#content>.list>.team .team3 {
  width: 944px;
  height: 448px;
  position: absolute;
  top: 240px;
  left: 50%;
  transform: translateX(-50%);
}

#content>.list>.team .team3 ul {
  position: relative;
  height: 100%;
}

#content>.list>.team .team3 ul>li {
  width: 118px;
  height: 100%;
  background: url("./imgs/team.png") no-repeat;
  float: left;
  transition: opacity 1s;
}

#content>.list>.team .team3 ul>li:nth-child(1) {
  background-position: 0 0;
}

#content>.list>.team .team3 ul>li:nth-child(2) {
  background-position: -118px 0;
}

#content>.list>.team .team3 ul>li:nth-child(3) {
  background-position: -236px 0;
}

#content>.list>.team .team3 ul>li:nth-child(4) {
  background-position: -354px 0;
}

#content>.list>.team .team3 ul>li:nth-child(5) {
  background-position: -472px 0;
}

#content>.list>.team .team3 ul>li:nth-child(6) {
  background-position: -590px 0;
}

#content>.list>.team .team3 ul>li:nth-child(7) {
  background-position: -708px 0;
}

#content>.list>.team .team3 ul>li:nth-child(8) {
  background-position: -826px 0;
}


/*第六屏*/
#content>.list>.ad {
  background: url(imgs/bg6.jpg) no-repeat;
}
/*第七屏*/
#content>.list>.add {
  background: url(imgs/bg7.jpg) no-repeat;
}
/* 圆点 */
#content>.dot {
  position: fixed;
  right: 10px;
  top: 50%;
}

#content>.dot>li {
  width: 8px;
  height: 8px;
  border: 2px solid #c90606;
  margin-top: 10px;
  border-radius: 50%;
  cursor: pointer;
}

#content>.dot>li:hover {
  background-color: #fff;
}

#content>.dot>li.active {
  background-color: #fff;
}

/* 出入场 */
#content>.list>.home .home1,
#content>.list>.home .home2 {
  transition: transform 1s, opacity 1s;
}

/*#content .course .plane1 {*/
  /*width: 359px;*/
  /*height: 283px;*/
  /*background: url(./imgs/plane1.png) no-repeat;*/
  /*position: absolute;*/
  /*left: 300px;*/
  /*top: -100px;*/
  /*transition: 1s;*/
/*}*/

/*#content .course .plane2 {*/
  /*width: 309px;*/
  /*height: 249px;*/
  /*background: url(./imgs/plane2.png) no-repeat;*/
  /*position: absolute;*/
  /*left: -100px;*/
  /*top: 200px;*/
  /*transition: 1s;*/
/*}*/

/*#content .course .plane3 {*/
  /*width: 230px;*/
  /*height: 182px;*/
  /*background: url(./imgs/plane3.png) no-repeat;*/
  /*position: absolute;*/
  /*left: 300px;*/
  /*top: 400px;*/
  /*transition: 1s;*/
/*}*/

#content .works .pencel1 {
  width: 180px;
  height: 97px;
  background: url(./imgs/pencel1.png) no-repeat;
  position: absolute;
  transition: 1s;
  left: 500px;
  top: 0;
}

#content .works .pencel2 {
  width: 268px;
  height: 38px;
  background: url(./imgs/pencel2.png) no-repeat;
  position: absolute;
  transition: 1s;
  left: 300px;
  top: 250px;
}

#content .works .pencel3 {
  width: 441px;
  height: 231px;
  background: url(./imgs/pencel3.png) no-repeat;
  position: absolute;
  transition: 1s;
  left: 650px;
  top: 300px;
}

#content>.list>.about .about3>.item,
#content>.list>.team .team1,
#content>.list>.team .team2 {
  transition: 1s transform;
}

/* 音频 */
#head>.headMain .music {
  width: 14px;
  height: 14px;
  background: url(./imgs/musicon.gif);
  float: left;
  margin: 50px 0 0 5px;
  cursor: pointer;
}

/* 开机动画 */
#mask {
  height: 100%;
  width: 100%;
  position: absolute;
  z-index: 99;
  margin: auto;
}

#mask .up {
  /*margin: auto;*/
  width: 100%;
  height: 100%;
  background: url(./imgs/mask01.png);
  transition: 2s height;
}

#mask .down {
  /*margin: auto;*/
  width: 100%;
  height: 50%;
  background: url(./imgs/mask02.png);
  transition: 2s height;
  position: absolute;
  bottom: 0;
}

#mask .line {
  height: 8px;
  width: 0;
  background-color: #c90606;
  position: absolute;
  left: 0;
  top: 50%;
  margin-top: -2px;
  z-index: 111;
  transition: width 2s;
}

/*.playBtn, .muntedBtn, .soundBtn, .pause, .nextBtn {*/
  /*width: 119px;*/
  /*height: 119px;*/
  /*margin-top: 10px;*/
/*}*/

/*.playBtn {*/
  /*display: inline-block;*/
  /*background: url(img/pause.png) no-repeat;*/
/*}*/

/*.muntedBtn {*/
  /*display: inline-block;*/
  /*background: url(img/sound.png) no-repeat;*/
/*}*/

/*.soundBtn {*/
  /*display: inline-block;*/
  /*background: url(img/mute.png) no-repeat;*/
/*}*/

/*.pause {*/
  /*display: inline-block;*/
  /*background: url(img/play.png) no-repeat;*/
/*}*/

/*.nextBtn {*/
  /*display: inline-block;*/
  /*float: right;*/
  /*background: url(img/prev.jpg) no-repeat;*/
/*}*/

/*.range {*/
  /*width: 100%;*/
  /*height: 5px;*/
  /*border-radius: 5px;*/
  /*border: 1px solid #CCCCCC;*/
/*}*/

/*.range:hover {*/
  /*!*border: 2px solid green;*!*/
  /*box-shadow: 2px 2px 10px #ccc, -2px -4px 10px #ccc;*/
/*}*/

/*.rangem {*/
  /*display: block;*/
  /*height: 100%;*/
  /*width: 0%;*/
  /*border-radius: 5px;*/
  /*background: #e7a2a2;*/
/*}*/

/*input {*/
  /*float: right;*/
  /*margin-top: 20px;*/
  /*margin-left: 20px;*/
/*}*/

/*#player1 {*/
  /*float: left;*/
/*}*/

video{
  margin-top: 0px;
}
footer{
  margin-top: 100px;
  width: 100%;
  background: #e7a2a2;
  color: white;

}

.container-footer-all{
  width: 100%;
  max-width: 1200px;
  margin: auto;
  padding: 40px;
}

.container-body{
  display: flex;
  justify-content: space-between;
}

.colum1{
  max-width: 400px;
}

.colum1 h1{
  font-size: 22px;
}

.colum1 p{
  font-size: 14px;
  color: #C7C7C7;
  margin-top: 20px;
}

.colum2{
  max-width: 400px;

}

.colum2 h1{
  font-size: 22px;
}

.row{
  margin-top: 20px;
  display: flex;
}

.row img{
  width: 36px;
  height: 36px;
}

.row label{
  margin-top: 10px;
  margin-left: 20px;
  color: #C7C7C7;
}

.colum3{
  max-width: 400px;
}

.colum3 h1{
  font-size: 22px;
}

.row2{
  margin-top: 20px;
  display: flex;
}

.row2 img{
  width: 36px;
  height: 36px;
}

.row2 label{
  margin-top: 10px;
  margin-left: 20px;
  max-width: 140px;
}

.container-footer{
  width: 100%;
  background: #c90606;
}

.footer{
  max-width: 1200px;
  margin: auto;
  display: flex;
  justify-content: space-between;
  padding: 20px;
}

.copyright{
  color: #e7a2a2;
}

.copyright a{
  text-decoration: none;
  color: white;
  font-weight: bold;
}

.information a{
  text-decoration: none;
  color: #e7a2a2;
}


@media screen and (max-width: 1100px){

  .container-body{
    flex-wrap: wrap;
  }

  .colum1{
    max-width: 100%;
  }

  .colum2,
  .colum3{
    margin-top: 40px;
  }
}
#roll{width:100%;height:300px;position:relative;overflow: hidden;margin-bottom: 70px;}
#roll ul{width:220%;height:100%;overflow: hidden;position: absolute;left:-9px;transition: all 1s linear;}
#roll ul li{float:left;width:7%;height:300px;margin-left:0.57%;}
#roll ul li p{font-size:0.8rem;color:gray;text-align: left;width:100%;}/*===设置图片标题===*/
#roll ul li p .figure{width:30px;height:30px;border-radius:50%;margin-top:10px;}/*===设置小图片===*/
#roll ul li p .figure:hover{transform:rotate(360deg);transition: all 1s linear;width:50px;height:50px;}
#roll ul li p .figure:before{width:0;height:0;}/*===清除大图片中设置before，after带来的影响===*/
#roll ul li p .figure:after{width:0;height:0;}/*===清除大图片中设置before，after带来的影响===*/
#roll ul li p .figure img{width:100%;height:100%;}/*===设置小图片===*/

#roll ul li a{display:inline-block;width:100%;height:193px;position: relative;overflow: hidden;border-radius: 5px;}/*====设置图片====*/
#roll ul li a img{width:100%;height:100%;}/*====设置图片参数====*/
#roll ul li a span{
  position:absolute;
  width:100px;height:30px;
  /*border:1px solid red;*/
  z-index: 10;
  left:50%;top:50%;
  transform: translateX(-50%) translateY(-50%);
  font-size:1.5rem;
  color:white;
}/*====设置图片备注====*/
#roll ul li a:before{
  content:'';
  width:100%;
  height:25%;
  position:absolute;
  left:0;top:25%;
  /*background:rgba(0,0,15,0.1);*/
  /*box-shadow: 0 0 10px black;*/
  z-index:9;
  transition: all 1s linear;
  background:linear-gradient(to top,transparent ,rgba(0,0,15,0.2),transparent);
}/*===设置图片阴影样式===*/
#roll ul li a:hover:before{top:-20%;}/*===设置图片鼠标事件阴影样式变化===*/
#roll ul li a:hover:after{bottom:-20%;}/*===设置图片鼠标事件阴影样式变化===*/
#roll ul li a:after{
  content:'';
  width:100%;height:25%;
  position:absolute;
  left:0;bottom:25%;
  /*background:rgba(0,0,15,0.1);*/
  z-index:9;
  transition: all 1s linear;
  background:linear-gradient(to bottom,transparent,rgba(0,0,15,0.2) ,transparent);
}/*===设置图片阴影样式===*/